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arXiv physics/0701298physics.flu-dyn
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超声晶体的共形映射:约束超声和类耳蜗波导引

Conformal mapping of ultrasonic crystals: confining ultrasound and cochlear-like wave guiding

A. Bazan, M. Torres, F. R. Montero de Espinosa, R. Quintero-Torres, J. L. Aragon

摘要:

二维超声晶体平板的共形映射产生具有吸引人的声学特性的超声散射体的封闭几何布置。该声学壳能够限制超声模式。这些内部共振中的一些可以由外部波源引起。线性缺陷的映射产生了表现出类似于合成“耳蜗”的特征的空间频率选择的波导。实验和理论结果都在这里报告。

英文摘要:

Conformal mapping of a slab of a two-dimensional ultrasonic crystal generate a closed geometrical arrangement of ultrasonic scatterers with appealing acoustic properties. This acoustic shell is able to confine ultrasonic modes. Some of these internal resonances can be induced from an external wave source. The mapping of a linear defect produces a wave-guide that exhibits a spatial-frequency selection analogous to that characteristic of a synthetic "cochlea". Both, experimental and theoretical results are reported here.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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